Thinking of leaving my course

Hi i would like some advice on student tuition fees. I am 7 weeks into a school direct PGCE course and i have been battling for about 4 weeks now with the paperwork, workload and long days 8-6 then having to come home to my own children. I am not entitled to a bursary i have received £1200 so far maintenance loan and of course Student Finance have authorised the £9000 fees for this one year course. I am wondering if i leave how much am i expected to pay back, is there a cut off date for when id be entitled to pay it all back etc. I really don't want to have to drop out but it is actually causing me great stress and anxiety at the moment that I'm not sure it's worth it, plus everyone i speak to regarding teaching and indeed the teaching staff in my school i find very negative i need more positivity in my life. Thanks for your help